Finding the Fourth Proportional to 681,406,323.43, 1,022,109,368.51 and 215,394,880.99
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Solution
The fourth proportional to 681,406,323.43, 1,022,109,368.51 and 215,394,880.99 is: 323,092,284.61
Step by Step Solution
- Step 1: Write the proportion equation
681,406,323.43 : 1,022,109,368.51 = 215,394,880.99 : x - Step 2: Convert to fraction form
681,406,323.43/1,022,109,368.51 = 215,394,880.99/x - Step 3: Cross multiply
681,406,323.43x = 1,022,109,368.51 × 215,394,880.99 - Step 4: Simplify right side
681,406,323.43x = 220,157,125,787,898,528 - Step 5: Solve for x
x = 220,157,125,787,898,528/681,406,323.43 - Step 6: Final answer
x = 323,092,284.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.